diff --git a/phpBB/includes/session.php b/phpBB/includes/session.php
index 0ef71e63d4..c9e12b77e2 100644
--- a/phpBB/includes/session.php
+++ b/phpBB/includes/session.php
@@ -1121,12 +1121,6 @@ class session
 
 		if ($key)
 		{
-			// removing "stale" keys
-			$sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . '
-				WHERE user_id = ' . (int) $user_id . "
-					AND key_id <> '" . $db->sql_escape(md5($key)) . "'";
-			$db->sql_query($sql);
-
 			$sql = 'UPDATE ' . SESSIONS_KEYS_TABLE . '
 				SET ' . $db->sql_build_array('UPDATE', $sql_ary) . '
 				WHERE user_id = ' . (int) $user_id . "
@@ -1134,11 +1128,6 @@ class session
 		}
 		else
 		{
-			// Before inserting, we will remove all previous keys. ;)
-			$sql = 'DELETE FROM ' . SESSIONS_KEYS_TABLE . '
-				WHERE user_id = ' . (int) $user_id;
-			$db->sql_query($sql);
-
 			$sql = 'INSERT INTO ' . SESSIONS_KEYS_TABLE . ' ' . $db->sql_build_array('INSERT', $sql_ary);
 		}
 		$db->sql_query($sql);